If you’ve only got one day in Paris and If it’s your first time, I’d combine the itineraries for days one and two. Base yourself a bit more central to the main attractions — for a night of absolute pampering, treat yourself to a stay at Hôtel de Crillon, A Rosewood Hotel, or Le Meurice — two luxury properties just off the Tuileries Garden.
Wake up early and indulge in room service or grab a fresh croissant from a boulangerie near your hotel, and savor every second of that interaction — the greasy bag, the warm dough, the flaky mess of it all. Start at the Palais-Royal Garden and Galerie Vivienne before ducking over to see Notre-Dame.
You can wander around the Louvre courtyard and Tuileries Garden — Le Cafe Marly is a pricey lunch, but offers classic French dishes served with iconic views of the pyramid.
Grab the metro over to Place du Trocadero for some Eiffel Tower time, wander the Champs-Élysées, then stop back at the hotel to freshen up before taking yourself a bit further afield for dinner — go for Bistrot des Tournelles, another excellent spot for homemade pork terrine, steak frites, chocolate mousse, and other French comforts.
